1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef SOUNDSOURCE_H
#define SOUNDSOURCE_H
#include <string>
#include <al.h>
#include "System/Misc/NonCopyable.h"
#include "System/Misc/SpringTime.h"
#include "System/float3.h"
#include "OggStream.h"
class IAudioChannel;
class SoundItem;
/**
* @brief One soundsource wich can play some sounds
*
* Construct some of them, and they can play SoundItems positioned anywhere in 3D-space for you.
*/
class CSoundSource
{
public:
/// is ready after this
CSoundSource();
CSoundSource(CSoundSource&& src) { *this = std::move(src); }
CSoundSource(const CSoundSource& src) = delete;
/// will stop during deletion
~CSoundSource();
// don't ever need to actually move, just here to satisfy compiler
CSoundSource& operator = (CSoundSource&& src) { return *this; }
CSoundSource& operator = (const CSoundSource& src) = delete;
void Update();
void UpdateVolume();
bool IsValid() const { return (id != 0); };
int GetCurrentPriority() const;
bool IsPlaying(const bool checkOpenAl = false) const;
void Stop();
/// will stop a currently playing sound, if any
void Play(IAudioChannel* channel, SoundItem* buffer, float3 pos, float3 velocity, float volume, bool relative = false);
void PlayAsync(IAudioChannel* channel, SoundItem* buffer, float3 pos, float3 velocity, float volume, bool relative = false);
void PlayStream(IAudioChannel* channel, const std::string& stream, float volume);
void StreamStop();
void StreamPause();
float GetStreamTime();
float GetStreamPlayTime();
static void SetPitch(const float& newPitch) { globalPitch = newPitch; }
static void SetHeightRolloffModifer(const float& mod) { heightRolloffModifier = mod; }
private:
struct AsyncSoundItemData {
IAudioChannel* channel;
SoundItem* buffer;
float3 pos;
float3 velocity;
float volume;
bool relative;
AsyncSoundItemData()
: channel(nullptr)
, buffer(nullptr)
, volume(1.0f)
, relative(false)
{}
};
private:
static float referenceDistance;
//! used to adjust the pitch to the GameSpeed (optional)
static float globalPitch;
//! reduce the rolloff when the camera is height above the ground (so we still hear something in tab mode or far zoom)
static float heightRolloffModifier;
private:
ALuint id;
SoundItem* curPlaying;
IAudioChannel* curChannel;
COggStream curStream;
float curVolume;
spring_time loopStop;
bool in3D;
bool efxEnabled;
int efxUpdates;
ALfloat curHeightRolloffModifier;
AsyncSoundItemData asyncPlay;
};
#endif
|
